97768764 has 36 divisors (see below), whose sum is σ = 253169280. Its totient is φ = 31794240.

The previous prime is 97768757. The next prime is 97768777. The reversal of 97768764 is 46786779.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 97768764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31644 + ... + 34595.

It is an arithmetic number, because the mean of its divisors is an integer number (7032480).

Almost surely, 2^97768764 is an apocalyptic number.

It is an amenable number.

97768764 is an abundant number, since it is smaller than the sum of its proper divisors (155400516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97768764 is a wasteful number, since it uses less digits than its factorization.

97768764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66290 (or 66285 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 97768764 is about 9887.8088573758. The cubic root of 97768764 is about 460.6807249704.

The spelling of 97768764 in words is "ninety-seven million, seven hundred sixty-eight thousand, seven hundred sixty-four".